21:09:30 Unable to set Cell Caching using SQLite method, reverting to memory<br />21:09:30 Create new PHPExcel object<br />21:09:30 Set properties<br />21:09:30 Add data<br />21:09:30 Hide 'Phone' and 'fax' columns<br />21:09:30 Set outline levels<br />21:09:30 Freeze panes<br />21:09:30 Rows to repeat at top<br />21:09:30 Write to Excel2007 format<br />21:09:30 File written to 06largescale-with-cellcaching-sqlite.xlsx<br />Call time to write Workbook was 0.2079 seconds<br />21:09:30 Current memory usage: 20 MB<br />21:09:30 Peak memory usage: 24 MB<br />21:09:30 Done writing file<br />File has been created in /home/autourdey/invoice/vendor/phpoffice/phpexcel/Examples<br />